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2005-02-12 12:00-16:00 UTC @ http://acm.uva.es/contest

"Hey! Not a network-flow problem again!!" my friends and I always complain. Why do the tasks here always rely on advanced algorithms? Why don't the problemsetters think about us newbies? We know we can't be quiet. We've got to do something. But how?

Our contest will be quite different from others. You do not need to know very hard algorithms. All you need here is simply a clear mind and some basic knowledge of programming. For example:
- Input/output Processing
- Sorting and Searching
- Graph Traversing
- Simple Maths
- Recursion and Backtracking

Our problems are relatively easy; we would like to make even beginners to be able to solve a couple of them within the 4-hour duration.

We invite everyone interested in programming to join our contest. You won't be disappointed.

Observer and Friends @ 2005

Seems interesting, and the timing is good for all Chinese

We would like to thank everyone who have helped us make this contest a success. Special thanks must be given to Per Austrin and Marian Dvorsky, who pointed out the mistakes in our tasks. And also I thank all the system adminstrators for their generous support to our contest.

If you have any suggestions for us, please let us know~

P.S. Please accept our apology for any inconvenience we've caused.

Observer wrote: Our problems are relatively easy; we would like to make even beginners to be able to solve a couple of them within the 4-hour duration.

Hmm, I found the problems rather hard (I only managed to solve one). Seems I need some more practise, so I can reach beginner status

I also expected more easier problems looking at the contest description. Therefore I didn't think enough about the problems before coding them and got lots of wrong submissions.
But that shouldn't be a complain that the problems were too difficult, its my own fault if I don't use my brain

Well.....
I feel that I am too old for a real time contest now......
So strong are the "Newbies" nowadays......... I only solved 2 problems for the "Newbies" ~_~

C'mon Wai, who's old

A good problemset, but hardly qualifying as 'newbie'. Wonder what an 'elite' contest would look like...

Did anyone solve A without a prefab bigint class?

little joey wrote:C'mon Wai, who's old

OK You are much more qualified than me to use the word "old"

little joey wrote:A good problemset, but hardly qualifying as 'newbie'. Wonder what an 'elite' contest would look like...

I would expect a contset for "dummies"

little joey wrote:Did anyone solve A without a prefab bigint class?

I feel strange about A too, how can solve it without a pre-write bigint class?

little joey wrote:C'mon Wai, who's old

A good problemset, but hardly qualifying as 'newbie'. Wonder what an 'elite' contest would look like...

Did anyone solve A without a prefab bigint class?

I was not able to solve A. My personal bigint library has no proper division or modulo function yet (only division/modulo of bigint by normal int)... I tried to use the routines from the "Programming challenges" book, but I couldn't get it to work. When looking back at the two hours wasted on A, I should have spent those two hours programming my own division routine instead.

Well I didn't use a pre-write bigint class...

Anyway, by "newbies" we mean it does not require in-depth knowledge of specific algorithms. If this term bothers you, please let us change it next time

Hello.
My opinion is that this contest was much harder then last Waterloo contest.I spent much time on problem F and can't solve it.Please give me some hint about your algo.May be we can use the fact that 1<=f<=5.Please give some hint.
Eduard

Heh... During first hour I solved 3 problems from Waterloo contest (including N*log(N) number of inverses). Though, all were WA until I refreshed the page

Others didn't go easy though... I liked E - that lexicographicness was real pain in the a**

little joey wrote:Did anyone solve A without a prefab bigint class?

Yeah, I did.

I solved it with in-contest-fab bigint (though not a class, but 'div' function)

i found this site few days ago
its GREAT!
till now i always wanted to practice coding but didnt where to start...

the problems in this noobie contest will come on volume 108 soon i hope...
even tho i cudnt get a single accepted entry, i learnt a good amount